← Vulnerability feed

Vulnerability record · CVE-2026-67288 · published 1 August 2026

CVE-2026-67288: Freerdp null pointer dereference vulnerability

Freerdp · Freerdp

FreeRDP before 3.29.0 contains a null pointer dereference vulnerability in smartcard cache request decoders that accept NULL NDR pointers for LookupName in SCARD_IOCTL_READCACHEA and SCARD_IOCTL_WRITECACHEA operations. When smartcard emulation is enabled, attackers can send crafted smartcard cache requests with NULL lookup-name pointers to trigger strlen() on a null pointer, causing client process termination.

8.7 CVSS 4.0 High EPSS 0.64% · top 51.6% CWE-476 · NULL pointer dereference
8.7CVSS 4.0 base score
0.64%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
5References
3 Sep 2026Last modified by NVD

Description

FreeRDP before 3.29.0 contains a null pointer dereference vulnerability in smartcard cache request decoders that accept NULL NDR pointers for LookupName in SCARD_IOCTL_READCACHEA and SCARD_IOCTL_WRITECACHEA operations. When smartcard emulation is enabled, attackers can send crafted smartcard cache requests with NULL lookup-name pointers to trigger strlen() on a null pointer, causing client process termination.

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/FreeRDP/FreeRDP/commit/5370fb26fbf034ecd11d3026b6ad639b5fff493f Patch
https://github.com/FreeRDP/FreeRDP/commit/f3b4347105114fe7453828736bea069999af319f Patch
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-ph3q-f9w8-7jf3 PatchVendor Advisory
https://www.vulncheck.com/advisories/freerdp-before-denial-of-service-via-smartcard-cache PatchThird Party Advisory
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-5wr6-8m8j-3h7f Not Applicable

Track CVE-2026-67288 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2026-31883Freerdp heap-based buffer overflow vulnerabilityFreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.24.0, a size_t underflow in the IMA-ADPCM and MS-ADPCM audio decoders lea…EPSS 0.32%9.8CVE-2024-32662Freerdp out-of-bounds read vulnerabilityFreeRDP is a free implementation of the Remote Desktop Protocol. FreeRDP based clients prior to version 3.5.1 are vulnerable to out-of-bounds read. T…EPSS 0.77%9.8CVE-2024-32659Freerdp out-of-bounds read vulnerabilityFreeRDP is a free implementation of the Remote Desktop Protocol. FreeRDP based clients prior to version 3.5.1 are vulnerable to out-of-bounds read if…EPSS 1.2%9.8CVE-2024-32658Freerdp out-of-bounds read vulnerabilityFreeRDP is a free implementation of the Remote Desktop Protocol. FreeRDP based clients prior to version 3.5.1 are vulnerable to out-of-bounds read. V…EPSS 1.4%9.8CVE-2024-32459Freerdp out-of-bounds read vulnerabilityFreeRDP is a free implementation of the Remote Desktop Protocol. FreeRDP based clients and servers that use a version of FreeRDP prior to 3.5.0 or 2.…EPSS 3.7%9.8CVE-2024-32460Freerdp out-of-bounds read vulnerabilityFreeRDP is a free implementation of the Remote Desktop Protocol. FreeRDP based based clients using `/bpp:32` legacy `GDI` drawing path with a version…EPSS 1.9%9.8CVE-2024-32039Freerdp integer overflow vulnerabilityFreeRDP is a free implementation of the Remote Desktop Protocol. FreeRDP based clients using a version of FreeRDP prior to 3.5.0 or 2.11.6 are vulner…EPSS 2.3%9.8CVE-2024-32040Freerdp vulnerabilityFreeRDP is a free implementation of the Remote Desktop Protocol. FreeRDP based clients that use a version of FreeRDP prior to 3.5.0 or 2.11.6 and hav…EPSS 1.9%

Source: NIST National Vulnerability Database (record CVE-2026-67288), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.